Legio IV Gallica

Legio IV Gallica was a legion of the Roman Republic and Roman Empire raised in 41 BC by Emperor Augustus.

History
Legio IV Gallica was founded in Bibracte, Gallia in 41 BC with Lucius Cornificius as its legate. Emperor Augustus raised the Fourth Legion with the goal of fighting the Gauls of northwestern France and migratory Germans that menaced his allies in central and northern Gaul, specifically the Belgae and the Helvetii. The legion fought against Gaul first, and it proceeded to be deployed in wars in Spain (after Marcus Aemilius Lepidus' armies retook coastal Spain) and North Africa. The legion found itself on the other side of the Mediterranean Sea during wars against Mark Antony, and its troops became very experienced.